A blood drive will be held during the American Legion 97th National Convention in Baltimore. The event, to be held over two separate days, will be on Friday, Aug. 28, and Monday, Aug. 31, from 9 a.m. To 2:30 p.m. each day, in Halls D & E, Level 100 of the Baltimore Convention Center. The American Legion Blood Donor Program www.legion.org/security/blood has existed officially since 1942 to support blood donation.